how to derive eddsa method #298
Description
nc DeriveChildKeyFromHierarchy(indicesHierarchy []uint32, pk *ExtendedKey, mod *big.Int, curve elliptic.Curve) (*big.Int, *ExtendedKey, error) {
var k = pk
var err error
var childKey *ExtendedKey
mod_ := common.ModInt(mod)
ilNum := big.NewInt(0)
for index := range indicesHierarchy {
ilNumOld := ilNum
ilNum, childKey, err = DeriveChildKey(indicesHierarchy[index], k, curve)
if err != nil {
return nil, nil, err
}
k = childKey
ilNum = mod_.Add(ilNum, ilNumOld)
}
return ilNum, k, nil
}
how the eddsa derive